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3 years ago

13

A bag contains 10 red marble and 15 green marbles.if Yukon selects a marble from the bag without looking what is the probability

that she will pull out a red marble

1 answer:

uranmaximum [27]3 years ago

6 0

Answer:

10/25

Step-by-step explanation:

Theres 25 marbles in total. 10 are red. So its 10/25

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4. 6t -5+5t = 105 (t = 4; t = 7;t = 10)

prohojiy [21]

Answer:

t = 10.

Step-by-step explanation:

We can combine like terms, getting 11t - 5 = 105.

Add both sides by 5, getting 11t = 105 + 5 = 110.

We can then divide both sides by 11, getting t = 10.

4 0

3 years ago

Taylor is making a cookie cake that has a diameter of 13 in. What is the area of a fourth of the cookie cake?

weqwewe [10]

Cookie Cake is in the form of a circle.

Radius of circle = 1/2 * diameter of circle = 1/2*13=13/2=6.5 in

Thus the Area of the circle = $\pi r^2$

= $\pi *6.5^2$

$= 132.73$

Area of a fourth of the Cookie cake $= \frac{1}{4} *132.73 = 33.18 in^2$

5 0

3 years ago

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One day the temperature was 72°F. That night, the temperature was 44°F. What number represents the change in temperature?A. 22°F

soldier1979 [14.2K]

Answer:

-28*F, hope this helps!

7 0

3 years ago

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Karl earned scores of 58, 88, 80, and 70 on his first 4 Chemistry tests. What is the minimum score he needs to earn on his fifth

OLga [1]

Answer:

79

Step-by-step explanation:

(58+88+80+70+ x)/5=75

75*5=296x

375=296x

x=375-296

x=79

8 0

3 years ago

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What the answer to this equation be?

scoray [572]

If you expand the square, you have

$\dfrac{1}{4}x^2-3x=7x+8-10x$

Simplify the right hand side:

$\dfrac{1}{4}x^2-3x=-3x+8$

Cancel the -3x appearing on both sides:

$\dfrac{1}{4}x^2=8$

Multiply both sides by 4:

$x^2=32$

Consider the square root of both terms (using the doubles sign):

$x=\pm\sqrt{32}=\pm4\sqrt{2}$

5 0

4 years ago